Red Hat Bugzilla – Bug 155605
prelink segfaults when reading corrupted ELF files
Last modified: 2007-11-30 17:11:04 EST
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050323 Fedora/1.7.6-1.3.2
Description of problem:
After building a custom Python RPM, the daily prelink run segfaulted when prelinking /usr/lib/debug/usr/bin/python.debug. It's nothing critical, since the python.debug file is probably broken anyway, but prelink should print a warning message and continue instead. I wrote a quick patch which just silently ignores it, will attach that.
Version-Release number of selected component (if applicable):
prelink-0.3.3, prelink-0.3.4 from devel too
Steps to Reproduce:
1. Create a corrupted ELF file (will attach one)
2. run 'prelink /path/to/file' or 'prelink -a'
Actual Results: Segmentation fault (core dumped)
Expected Results: "File %s is corrupted, not prelinking" or something like that.
Only special configuration is that debug file I'll attach, everything else is a normal FC3 install.
Created attachment 113483 [details]
patch avoiding the segfault
This just avoids the segfault, ideally read_dynamic() should return int
Created attachment 113484 [details]
file causing the segfault
Don't know why I got such a file after building my Python RPM,
it looks like an ELF, but it crashes prelink :-(
PS: Sorry for the looong line in the bugreport, didn't realize
bugzilla doesn't break lines for me.
*** Bug 155607 has been marked as a duplicate of this bug. ***
Forgot to close this, it has been fixed in 0.3.5-1.